Water cooler



June 3, 1930. T, s, MERRYLEES 1,761,087

WATER COOLER Filed Jan. 7, 1929 W1 TNESSES l N VEN TOR:

'A l Tiwmas SJZeryees,

lil() Patented June 3, 1930' 'uflra srras rArNfr THOMAS S. MEERYLEES, F YEADON, PENNSYLVANIA.

- WATER' cootnn Application tiled January 7, 1929. Serial No. 330,863.

immediate consumption, and wherein spring` devices are relied upon to compensate for sublimation of the refri erant by maintaining it at all times in eective surface-contact with said receptacle or jar.

The objects of theV present inventionare to provide for maintenance of surface contact as between the refrigerant and the water cooling receptacle without necessitating employment of additional or auxiliary means such as above referred to, and in general to Y secure the advantages of simplied construction and arrangement in the manufacture of water coolers adapted to the use of powerful refrigerants like solid carbon dioxide.

In the drawings, Fig. I shows a vertical sectional view of a water cooler conveniently embodying my invention.

Fig. Il 1s a lan view of the same with the water supply ottle removed; and

Fig. Ill is a perspectiveview of the receptacle or jar in which the water is cooled.

With more detailed reference to these illustrations, the numeral 5 Acomprehensively designates the cooling receptacle or jar which receives the water, or other liquid to be4 cooled, from the supply bottle 6, said jar being constructed preferably from ceramic material like porcelain, for example. As shown, the bottle 6 is inverted after the customary manner with its mouth sealed by the liquid in the receptacle 5, and moreover supported as usual .by a gasket 7 seated in an internal annular recess 8 around the top of said receptacle. From Figs. Il and 'III it will be observed that the cooling receptacle 5 is generally cylindric andA formed with a having a sloping wall 10 at the rear.

For protection against external atmospheric induence, the receptacle 5 is embedded in a jacket 11 of heavy insulation, so as to be completely surrounded except for slight-protrusion of its open top and for provision of a hollow 12 to accommodate a commercial size brick or block Bof solid carbon dioxide or the like in repose against or closely hug the sloping wall 10 of the triangular odset 9, as shown in Figa I. With this arrangement, the block B is obviously maintained, under the influence of gravity, in surface contact with the wall 10- throughout the period of lsublimation so that the chilling triangular or wedge-shaped lateral o'set 9' y effect of the refrigerant B is effectively and t efliciently counicated to the water within the receptacle 5 without the assistance of auxiliary means. The hollow 12 -is accessible for filling from above, and is ordinarily protected by a closure inthe form of a removable insulate plug 13 which is recessed as at 14 (F ig. ll) and, incidentally, provided with a finger grasp 15.

The receptacle 5 is drained through a, short pipe connection 16 at the bottom, said connection leading through the insulation 11 to the exterior where it is fitted with a faucet 17. If desired, the cooler may be provided with a casing 18 of metal or wood to improve its appearance and thereby safeguard the insulation 11 against injury from im- In addition to the advantages already pointed out, it is possible, through my invention, to convert ordinaryv pack ice water coolers to the use of solid carbon dioxidemerely by substituting a cooling receptacle such as herein featured for the usual water jar, and filling in the space originally provided for the pack ice with insulation-reserving of course, a small opening like the hollow 12 for lthe commercial block of the new refrigerant.

The procedure is thought to be obvlous in view of the disclosure in stillanother patent application Ser. No. l298,67." 5, filed by me on August 10, 1928, a detailed Showing' having therefore been omitted in the present instance.

2 memos? Having thus described my invention, claim 1. In a iiquid cooler of the character de scribed, a coolinojreeeptacle having a slopl5 ing wall, and a jacket of thermo-insulation snugi surrounding said receptacle' While aicr 'ng a cavityto accommodate a unit block of solidcarbon dioxide, said unit block resting under the inuence o gravity against lo the sloping wall ofthe receptacle and he- 111g maintained in eective surface Contact therewith hy Vthe aid of a coactive #wail of the cavity throughout theentire period of suhlimation.

2. In a water cooler of the character 'described, a water cooling receptacle with a lateral oiset' having a sloping wall, and a jacket 'of thermo-insulation snugly fitting the receptacle and aiording a cavity to'v accommodate .a unit block of solid carbon dioxide, said unit block resting under the influence of gravity against the sloping Wall of the receptacle and beingl maintained in effective surface Contact therewith by the aid of a coactivepposed `Wall of the cavity aforesaid throughout the entire period of sublimation.

3. In a cooler of the character described, a coolin receptacle embodying a wedge' 3o shaped o set aor'ding an inclined wall, and

a jacket of thermo-insulation surroundin suoli receptacle with a counter Wedge-shape .cavity opposing the inclined "Wall to accommodate a unit 1nlock of carbon dioxide, said block hugging the inclined 1Wall on one of its major faces and being retained in eective gravitational surface contact therewith through the ai'd of one of its lateral edges engaging a coacti-ve wall of the cavity aoresaid.

4.o In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsylvania, this 31st day of December, 1928.

THOMAS S. MERRYLEES. 

